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  2. Small-angle approximation - Wikipedia

    en.wikipedia.org/wiki/Small-angle_approximation

    Using the squeeze theorem, [4] we can prove that ⁡ =, which is a formal restatement of the approximation ⁡ for small values of θ. A more careful application of the squeeze theorem proves that lim θ → 0 tan ⁡ ( θ ) θ = 1 , {\displaystyle \lim _{\theta \to 0}{\frac {\tan(\theta )}{\theta }}=1,} from which we conclude that tan ⁡ ( θ ...

  3. Proofs of trigonometric identities - Wikipedia

    en.wikipedia.org/wiki/Proofs_of_trigonometric...

    Place P on the line defined by + at a unit distance from the origin. Let PQ be a line perpendicular to line OQ defined by angle α {\displaystyle \alpha } , drawn from point Q on this line to point P. ∴ {\displaystyle \therefore } OQP is a right angle.

  4. Tangent half-angle formula - Wikipedia

    en.wikipedia.org/wiki/Tangent_half-angle_formula

    The sides of this rhombus have length 1. The angle between the horizontal line and the shown diagonal is ⁠ 1 / 2 ⁠ (a + b).This is a geometric way to prove the particular tangent half-angle formula that says tan ⁠ 1 / 2 ⁠ (a + b) = (sin a + sin b) / (cos a + cos b).

  5. Chiefs QB Patrick Mahomes on having to play 3 times in an 11 ...

    www.aol.com/chiefs-qb-patrick-mahomes-having...

    Kansas City Chiefs quarterback Patrick Mahomes celebrates as he heads off the field following an NFL football game against the Los Angeles Chargers Sunday, Dec. 8, 2024, in Kansas City, Mo.

  6. Pythagorean trigonometric identity - Wikipedia

    en.wikipedia.org/wiki/Pythagorean_trigonometric...

    Similar right triangles illustrating the tangent and secant trigonometric functions Trigonometric functions and their reciprocals on the unit circle. The Pythagorean theorem applied to the blue triangle shows the identity 1 + cot 2 θ = csc 2 θ, and applied to the red triangle shows that 1 + tan 2 θ = sec 2 θ.

  7. Travis Hunter, Ashton Jeanty headline 2024 Heisman Trophy ...

    www.aol.com/travis-hunter-ashton-jeanty-headline...

    The winner will be announced Saturday during a ceremony at Jazz at Lincoln Center in New York City starting at 8 p.m. ET on ESPN. Last year, LSU quarterback Jayden Daniels won the award, making 20 ...

  8. College Football Playoff: Ranking the potential upsets in the ...

    www.aol.com/sports/ranking-potential-upsets...

    3. #9 Tennessee at #8 Ohio State Line: Ohio State -7.5. The potential: Speaking of more to lose … Ryan Day might just be coaching for his job in these playoffs. Fortunately for him, the team he ...

  9. Tangent half-angle substitution - Wikipedia

    en.wikipedia.org/wiki/Tangent_half-angle...

    Here is another geometric point of view. Draw the unit circle, and let P be the point (−1, 0). A line through P (except the vertical line) is determined by its slope. Furthermore, each of the lines (except the vertical line) intersects the unit circle in exactly two points, one of which is P. This determines a function from points on the unit ...